Why Shingles Need Plywood Sheathing | What We Found Under This Church Roof

What happens when shingles are nailed directly into insulation?

That’s what our crew uncovered during this church roof project. Without proper roof sheathing, the shingles don’t have the solid substrate they need for proper fastening, which is important for maintaining the roofing system’s intended wind resistance and applicable warranty requirements.

It’s a good reminder that a roof is more than just the shingles you see from the ground. What’s underneath matters, too.

Do you know what’s underneath your shingles? Our team can take a closer look for you.